Parenteral injection unit



Sept. 23, 1941.

J. E. B. SWABACKER 2,256,657

PARENTERAL INJECTION UNIT Original Filed Aug. 16, 1940 Patented Sept.23, 1941 7 f John E. B. Swabacker, Chicago, 111.

Original application August 16, 1940, Serial No.

Divided and this application February 15, 1941, Serial No. 379,036

' 3 Claims.

This is a divisional application of the original application,Serial-Number 352,846 filed in the United States Patent Office on August16, 1940 for Parenteral injection unit.

My invention relates to a unit,.preierably complete, in which all of theparts of an apparatus for giving a parenteral injection are associatedand retained together in sterile condition in a convenient package forimmediate use on a patient.

Heretofore in parenteral injections it has been the custom to assemblean apparatus from supplies on hand. A bottle of sterile solution wasobtained. An air inlet means was sterilized and plugged into thecontainer, A length of tubing, a connector for connecting the tubing tothe container, and a needle were obtained from various sources,sterilized and put together. A clamping device was found and attached tothe tubing for regulating the flow of the liquid. All these operationstook time. Often parts were missing, then replacement caused furtherdelay. Often parenteral injections are given in emergencies where savingof time is important in saving a patients life. Another objection to theabove assembly of parts is that old parts are used. This is particularlybad where old tubing is used, because it is difiicult to successfullysterilize a long length of previously used tubing and remove foreignmatter from the interior of the same.

It is among the objects of this invention to solve these problems byproviding all or most of the parts of an apparatus for giving aparenteral injection in a single package or unit. My parenteralinjection unit has sterile, previously unused tubing, which in itspreferred form will be made of foldable or rollable and disposalmaterial. My combination is so formed that it may be retainedindefinitely in sterile condition and yet be immediately available andusuable at any time. My unit may be packed complete with all sterileparts, never used before, and after use may be disposed of, never to beused again for a parenteral injection. My invention also contemplatessuch other objects, advantages and capabilities as will later more fullyappear and which are inherently possessed by my invention.

While I have shown in the accompanying drawing a preferred form of myinvention, yet I wish it understood that the same is susceptible ofmodification and change without departing from the spirit of myinvention.

Referring to the drawing, Fig. 1 is an elevational view of my injectionunit in use; Fig. 2

is an elevational View partly in section of my injection unit showingthe tubing and attachments stored in the chamber member attached to theclosure; Fig. 3 is a detail View of'my cellulose tubing assembly; Fig. 4is a detail view of my rubber tubing assembly; Fig. 5 is a detailsectional View of my closure with removable chamber member; Fig. 6 is adetail view of my sealed envelope. 1

The embodiment selected to illustrate my invention comprises a containerl0 containing a sterile solution for intravenous or subcutaneousinjections, such as dextrose, glucose, sodium chloride or the like.Within the neck H of the container IS a plug [2, preferably made ofrubber, composition or the like, is positioned by friction grip. Spacedopenings l3 and 14 extend Vertically through said plug 12, and inopening I3 is positioned the upper end of hollow air tube P5 of glass orother suitable material. .The tubel5 extends downwardly within containerIt], with its lower end above the bottom of the container. Any suitablemeans forsupplying air to the container Iii may be provided.

A washer I6 of compressible material such as rubber, composition or thelike is positioned across the open top I! of the container ID. A metaldisc i8 is positioned on top of washer 16. Another compressible washerI9 is positioned on top of metal disc I8. A closure 20'has a loweroutwardly extending peripheral flange 22 forming a seat 23 so that whenthe screw threads 24 of the closure engage the screw threads 25 of theneck I l of the container, the seat 23 bears down against the topcompressible washer l9 forming a seal therewith. Pressure is alsoexerted downward against metal disc [8 and lower compressible washer l6so that the latter forms a seal with the top I! of the container In.

In this invention the closure 20 has screw threads 36 adapted to beengaged by screw threads 3'! of a separate chamber member 38.

A suitable length of sterile tubing 26 has attached to one end a sterileneedle 21 and to the other end a sterile connector 28. A clamp 29 forregulating the flow within the tubing 26 is attached to the tubing 26.

The tubing 26 is rolled or folded and in this form the chamber member 38is adapted to removably house the tubing 26, and when desired theattachments 21, 28 and 29. In this invention the tubing and attachmentsmay be withdrawn before the container I0 is unsealed by removal ofclosure 20.

In the preferred embodiment my tubing 26 is tached a swingable bale 33.

may then be inverted with the bale33, held in a wardly flared to form agrip for the recessed,

head 30 of the connector 28. V

Adjacent the bottom of the container-l0 in the lower side walls acircular i ecess, 31 provided within which is held a band Bit-Etc; whichis at: The containerl8 standard 34. The needle 2! is inserted into thepatient, the clamp. 29; is adjusted, air flows through tube [5 and thecontents of the container passthrough tubing 26* to the patient.

- the completion of the injection, the entire'unit, including thecontainer and tubing,

7 may be thrown'away or otherwise disposed of,

sterile injection solution therein, air supply means, and a removableclosure for sealing said container, a chamber member removably attachedto said closure, a length of sterile previously unused tubing made ofdisposable material, said tubing folded into a compact form,

said tubing in said compact form removably positioned in said chambermember, means for attaching one end of said tubing to said container 7upon the removal of the closure from the conjtainer, and an injectionneedle attached to the other end of said tubing.

'2; In combination with a container having sterile injection solutiontherein, air supply means, anda removable closure for sealing saidcontainer, a chamber member removably attached tooaid closure, a lengthof sterile previously unsused' tubing made of disposable material, saidtubing folded into a compact form, said tubing in said compact formremovably positioned in said chamber member, means for attaching one endof said tubin to said container upon the removal of the closure fromthe. container, the

never to be used again for an injection operation.

My combination may also provide for a sealed envelope 35 into which therolled or folded tubing and the attachments may be placed within thecapportion of the closure, This would act to insure that the tubing andattachments remain sterile until used in the injection operation. It isalso within the contemplation of myin- 'vention that the needle,connector orclamp; or

other end of said tubing injection needle.

3-. A sterile previously unused parenteral injectionumt comprising acontainer having sterile injection solution therein, air supply means,and a removable closure for sealing said container, a chamber memberremovably sealed to said closure, a length of sterile, previously unusedtubing arranged in compact form, a sterile connector attached toone endof said tubing and a sterile needle attached to the other end of saidtubing, saidtubing, connector and needle positioned w-ithin'said'chamber member, said chambermember adapted tobe withdrawn from saidclosure prior to the removalof the closure from the container so thatsaid tubing, connector and adapted to receive an needle-may beremovedfrom said chamber memberand be availablefor use with said containerimmediately upon withdrawal of the closure therefrom. I a JOHN E. B.SWABACKER,

